equipment

        Each player carries a "stick" that normally measures between 80–95 cm (31–38") long; shorter or longer sticks are available. Sticks were traditionally made of wood, but are now often made also with fibreglass, kevlar and/or carbon fibre composites. Metal is forbidden from use in field hockey sticks, due to the risk of injury from sharp edges if the stick were to break. The stick has a rounded handle, has a J-shaped hook at the bottom, and is flattened on the left side (when looking down the handle with the hook facing upwards). A stick that is designed to be used left-handed is not permissible in play.

There was traditionally a slight curve (called the bow, or rake) from the top to bottom of the face side of the stick and another on the 'heel' edge to the top of the handle (usually made according to the angle at which the handle part was inserted into the splice of the head part of the stick), which assisted in the positioning of the stick head in relation to the ball and made striking the ball easier and more accurate.

The hook at the bottom of the stick was only recently the tight curve (Indian style) that we have nowadays. The older 'English' sticks had a longer bend, making it very hard to use the stick on the reverse. For this reason players now use the tight curved sticks.

The handle makes up the about the top third of the stick. It is wrapped in a grip similar to that used on tennis racket. The grip may be made of a variety of materials, including chamois leather, which many players think improves grip in the wet.

It was recently discovered that increasing the depth of the face bow made it easier to get high speeds from the dragflick and made the stroke easier to execute. At first, after this feature was introduced, the Hockey Rules Board placed a limit of 50 mm on the maximum depth of bow over the length of the stick but experience quickly demonstrated this to be excessive. New rules now limit this curve to under 25 mm so as to limit the power with which the ball can be flicked.

Tie breaking

     Conditions for breaking ties are not laid down in the rules of field hockey. In many competitions (such as regular club competition, or in pool games in tournaments such as the Olympics), a tied result stands and the overall competition standings adjusted accordingly. Where tie-breaking is required, many associations will follow the procedure laid down in FIH tournament regulations which mandate 7.5 minutes each way of "golden goal" or "sudden death" extra time (i.e. the game ends as soon as one team scores). If scores are still level, then the game will be decided with penalty shootouts from the 23m line similar to Ice Hockey shootouts. Before 2011 matches were decided by penalty strokes, in much the same way that association football penalty shoot outs are conducted.

Other competitions may use alternative means of breaking a tie, for example, an extended period of golden goal extra time with a progressive reduction in the number of players each team can have on the field. The number of players is usually reduced to seven a side, and they play for ten minutes. At the end of this ten minutes, if there is still a tie, then they play another round of the ten-minute seven versus seven. After that, if the tie remains, the teams compete in penalty strokes. In the event that after two rounds of penalty strokes the tie still remains, the game goes to sudden-death penalty strokes to determine a winner. However, most games will end after one round of the seven versus seven, unless it is a game in which there needs to be a winner.

rules of hockey

    The game is played between two teams of up to sixteen players, out of whom eleven are permitted to be on the pitch at any one time. The remaining five players, the substitutes, may be substituted in any combination, from one to five, an unlimited number of times in the course of a game. Substitutions are permitted at any point in the game, apart from between the award and end of a penalty corner; two exceptions to this rule is for injury or suspension of the defending goalkeeper, which is not allowed when playing with a field keep, or a player can exit the field, but you must wait until after the inserter touches the ball to put somebody back in.

Players are permitted to play the ball with the flat of the 'face side' and with the edges of the head and handle of the field hockey stick with the exception that, for reasons of safety, the ball may not be struck 'hard' with a forehand edge stroke, because of the difficulty of controlling the height and direction of the ball from that stroke.

The flat side is always on the "natural" side for a right-handed person swinging the stick at the ball from right to left. Left-handed sticks are rare, but available; however they are pointless as the rules forbid their use in a game. To make a strike at the ball with a left to right swing the player must present the flat of the 'face' of the stick to the ball by 'reversing' the stick head, i.e. by turning the handle through approximately 180°(while a reverse edge hit would turn the stick head through approximately 90° from the position of an upright forehand stoke with the 'face' of the stick head).

Edge hitting of the ball underwent a two-year "experimental period", twice the usual length of an "experimental trial" and is still a matter of some controversy within the sport. Ric Charlesworth, the current Australian coach, has been a strong critic of the unrestricted use of the reverse edge hit. The 'hard' forehand edge hit was banned after similar concerns were expressed about the ability of players to direct the ball accurately, but the reverse edge hit does appear to be more predictable and controllable than its counterpart.

Other rules include; no foot to ball contact, obstructing other players, high back swing, and no third party. If a player is dribbling the ball and either loses control and kicks the ball or another player interferes that player is not permitted to gain control and continue dribbling. The rules do not allow the person who kicked the ball to gain advantage from the kick, so the ball will automatically be passed on to the opposing team. Conversely, if no advantage is gained from kicking the ball, play should continue. Players may not obstruct another's chance of hitting the ball in any way. No shoving/using your body/stick to prevent advancement in the other team. Penalty for this is the opposing team receives the ball and if the problem continues, the player can be carded. While a player is taking a free hit or starting a corner the back swing of their hit cannot be too high for this is considered dangerous. Finally there may not be three players touching the ball at one time. Two players from opposing teams can battle for the ball, however if another player interferes it is considered third party and the ball automatically goes to the team who only had one player involved in the third party.

Warnings and suspensions

    Hockey uses a three-tier penalty card system of warnings and suspensions:

• A green card is fairly similar to a football yellow card: the player does not have to leave the pitch (although at international standard the player has to leave the field for two minutes), but any further infractions will result in a yellow or red card.
• A yellow card is an official suspension similar to the penalty box in ice hockey. The duration is decided by the umpire issuing the card and the player must go to a pre-defined area of the pitch as chosen by the umpires at the beginning of the match. Most umpires will opt for a minimum of five minutes' duration without substitution; the maximum time is at the discretion of the umpire, depending on the seriousness of the offence, for example the second yellow to the same player or the first for danger might be given ten minutes. It is possible to yellow-card a player for the entirety of a game. (In some modes, including indoor, shorter periods of suspension are applied, dependent on local rules).
• A red card, just like in association football, is a permanent exclusion from the rest of the game, without substitution, and it usually results in the player being banned for a certain period of time or number of matches (this is governed by local playing conditions, rather than the rules of field hockey). The player must also leave the pitch and surrounding area.

general play the game

   For the purposes of the rules, all players on the team in possession of the ball are attackers, and those on the team without the ball are defenders, yet throughout the game being played you are always "attacking" your goal and "defending" the opposite goal.

Prior to the start of the game, a coin is tossed and the winning captain can choose a starting end or start with the ball. The game time is divided into two equal halves of 35 minutes each, with 5–10 minutes for half-time, although at local and regional level, games may be reduced to 25- to 30-minute halves to ease turf availability constraints. At the start of each half, as well as after goals are scored, play is started with a pass from the centre of the field. All players must start in their defensive half (apart from the player making the pass), but the ball may be played in any direction along the floor. Each team starts with the ball in one half, and the team that conceded the goal has possession for the restartThe match is officiated by two field umpires. Traditionally each umpire generally controls half of the field, divided roughly diagonally. These umpires are often assisted by a technical bench including a timekeeper and record keeper.

role of goal keeper

     When the ball is inside the circle they are defending and they have their stick in their hand, goalkeepers wearing full protective equipment are permitted to use their stick, feet, kickers or leg guards to propel the ball and to use their stick, feet, kickers, leg guards or any other part of their body to stop the ball or deflect it in any direction including over the back-line. Similarly, players with goalkeeping privileges are permitted to use their stick, feet and legs to propel the ball and to use their stick, feet, legs or any other part of their body to stop the ball or deflect it in any direction including over the back-line. However, neither goalkeepers, or players with goalkeeping privileges are permitted to conduct themselves in a manner which is dangerous to other players by taking advantage of the protective equipment they wear.

positions on the ground

      " hockey positions are discussed, notions of fluidity are very common. Each team can be fielded with a maximum of 11 players and will typically arrange themselves into forwards, midfielders, and defense with players frequently moving between theses lines with the flow of play. Each team may also play with:"

* a goalkeeper who wears a different color shirt and full protective equipment comprising at least headgear, leg guards and kickers; this player is referred to in the rules as a goalkeeper; or

* a field player with goalkeeping privileges wearing a different color shirt and who may wear protective headgear (but not leg guards and kickers or other goalkeeping protective equipment) when inside their defending 23m area; they must wear protective headgear when defending a penalty corner or stroke; this player is referred to in the rules as a player with goalkeeping privileges; or

* Only field players; no player has goalkeeping privileges or wears a different color shirt; no player may wear protective headgear except a face mask when defending a penalty corner or stroke.